http://bugzilla.suse.com/show_bug.cgi?id=947825
http://bugzilla.suse.com/show_bug.cgi?id=947825#c5
Takashi Iwai
Takashi, first, the "low" and "high" suffixes for crashkernel= parameter refer to DMA32 zone ("low", i.e. <=4G) and Normal zone ("high", i.e. >4G).
Thanks, I figured out by myself after the report, but I wasn't sure about the terminology here, as this confused me.
Second, the allocation is indeed much lower than in previous versions, but there is some logic behind the suggested number. If the logic misses some important aspects, I'll gladly assist in resolution.
Let me start with a general observation I made a couple of years ago, namely that memory required to save a dump does not depend on the total RAM.
I'm aware of some changes in systemd-udevd that cause OOM in SLE12 SP1. It's quite likely that they also affect Leap. Can you try adding "rd.udev.children-max=2" to KDUMP_COMMANDLINE_APPEND in /etc/sysconfig/kdump and try with the suggested value?
OK, if this tight size is intentional, I'm fine with this. It's hard to tell whether 111MB really works because kdump fails in anyway in a different point on Leap (it didn't seem to mount the local fs). More investigation needed. -- You are receiving this mail because: You are on the CC list for the bug.